Hugh Doggett Scott Jr. was an American politician. A member of the Republican Party, he represented Pennsylvania in the U.S. House of Representatives from 1941 to 1945 and from 1947 to 1959 and in the U.S. Senate, from 1959 to 1977. He served as Senate Minority Leader from 1969 to 1977.

The Rockefeller Republicans were members of the United States Republican Party (GOP) in the 1930s–1970s who held moderate-to-liberal views on domestic issues, similar to those of Nelson Rockefeller, Governor of New York (1959–1973) and Vice President of the U.S. (1974–1977). Rockefeller Republicans were most common in the Northeast and the industrial Midwestern states, while they were rare in the South and the West.